Remarks on conformal modulus in metric spaces

We give an example of an Ahlfors $3$-regular, linearly locally connected metric space homeomorphic to ${\mathbb{R}}^3$ containing a nondegenerate continuum $E$ with zero capacity, in the sense that the conformal modulus of the set of nontrivial curves intersecting $E$ is zero. We discuss this example in relation to the quasiconformal uniformization problem for metric spaces.